Low severity · published Jan 22, 2018
CVE-2018-1000002
Improper input validation bugs in DNSSEC validators components in Knot Resolver (prior version 1.5.2) allow attacker in man-in-the-middle position to deny existence of some data…
3.7
CVSS
1.1%
EPSS
No
On KEV
Description
Improper input validation bugs in DNSSEC validators components in Knot Resolver (prior version 1.5.2) allow attacker in man-in-the-middle position to deny existence of some data in DNS via packet replay.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 65% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KR
Knot Resolver · Nic
before 1.5.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-1000002
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-1000002
Vendor Advisory
https://www.knot-resolver.cz/2018-01-22-knot-resolver-1.5.2.html
More from Knot Resolver
8.1
CVE-2026-66374
Knot Resolver before 6.4.1 allows remote code execution via a heap-based buffer overflow in the DoQ (DNS-over-QUIC) receive path
7.5
CVE-2023-50387
Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more…
7.5
CVE-2023-46317
Knot Resolver before 5.7.0 performs many TCP reconnections upon receiving certain nonsensical responses from servers
7.5
CVE-2023-26249
Knot Resolver before 5.6.0 enables attackers to consume its resources, launching amplification attacks and potentially causing a denial of service
7.5
CVE-2022-40188
Knot Resolver before 5.5.3 allows remote attackers to cause a denial of service (CPU consumption) because of algorithmic complexity
